For Party wear look: Loreal True Match Liquid Foundation(High Coverage)+Loreal True Match Concealer + Loreal True Match compact. You can play around with colours and do a smokey eye and nice lip colour.

Primer is optional Neeti.Primer helps blurs those pores,gives matte finish and improves longevity of make up.
Colorbar Primer is so far the best choice for oily-acne prone skin.Though if you have severe acne,I would advise you to avoid it as primers are basically silicone based and can lead to breakouts.It is available online as well: Flipkart | Amazon